Oldsmobile Questions and Answers List

Look through our Oldsmobile car repair questions and answers. Auto mechanics give free help, advice and information. We help you with common problems and more complicated issuesthat only a dealership technician can answer.

2001 Silhouette ShuddersMisfiring at idle and driving, especially under load, but can occur at any time.On hwy, van will hesitate /shudder / jerk; letting up on pedal and gently easing back onto it will correct the problem for a bit. Also stepping on pedal and shifting to lower gear seems to minimize at least feeling the shuddering. Especially noticeable cruise is on. Cruise and A/C on seem to make it worse. Within the last day have noted this: high idle, between 900-1100 rpm.

Where Are The Transmission Speed Senors LocatedI have replace almost all sensor and need a diagram of the transmission speed sensors and shift solenoids. The location of the sensor depends on which ones you want to change.There are a few shift solenoids and an input and output speed sensor. I will send a diagram in a moment. Referencing the diagram I will send, the solenoids in the side cover require lowering the frame/engine/transmission assembly nearly out of the car.

Security Light Flashes on My Oldsmobile Delta 88This is a Pass-key II system. My battery had a bad cell so i replaced it. After that the cars security light flashes and the car will not crank. I guess really my question would be how can i reset the security system.

Oldsmobile 88 Dies Won't StartLive Chat:Yes, i have a 1998 Oldsmobile Delta 88 3800. Car was driving fine. All of a sudden stopped. Tried to crank it but, won't start. Its turning over very good but will not start. Changed fuel pump. Can you confirm you have fuel pressure?Yes, I pushed the button on the rail and fuel came out. Checked for sparks at the spark plugs it was good. Didn't check all the plugs.Did the fuel spray hard or just sort of come out? Just because there is fuel there, does not mean the PSI is high enough.

Olds Aurora Secondary AIR Injection Code p0410I replaced secondary air injection pump with new GM partand 2 wire connector to fix a GM P0410 code check engine light is still on after being cleared. Wondering if there is some fuse or wire...

My 1996 Cutlass Supreme wont StartI drove my car about 30 miles and parked it. Within 5 minutes I went to start it up and it won't start! It won't even turn over AFTER charging the battery. I tried to...

Leaking Coolant On 3400I replaced the intake manifold gaskets but i still have the milkshake antifreeze in the oil. See my picture and video of the rocker arms

Check Engine Light Code P1635 Volt Reference ProblemReplaced IAC and idle no longer raced but still was too high. MAF code for reference voltage. Back probed sensor and found 4.2 V at the MAF. Disconnected MAF and reference pin was at 5V. Replaced MAF, code cleared. Idle still erratic. Code set for Reference A voltage high. Back probed TP, Fuel Tank Pressure Sensor, MAP, and EGR and found 5V reference either connected or disconnected. Noticed that upon key on, Reference A will go to 6.2V. Took fuel pump out of the circuit and Reference A stays at 5V with key on. Jumping in the fuel pump causes the Reference A voltage to go to 6.2V with or without the sensors connected. All grounds have been checked good and tight. Any ideas of what next? I can't imagine a voltage regulator in the PCM failing in such a way to cause this behavior, but I'm at a loss as to what's causing it. Maybe a back EMF on the ground from the fuel pump? In any case, any help/insight would be greatly appreciated.

Replace Engine Now Won't StartI put a 3.4L engine from a Chevy Impala in my Olds Alero now it does not start. It cranks but won't run. Could it be the PCM?

1995 Olds Aurora 4.0 OveheatsGM dealer replaced water pump, later replaced by-pass hoses beyond pump.Question: Engine was losing water and noticed leaks. Repairs were done and re-done. After repairs engine temp was way to hot. Bottom radiator hose burst. Replaced hose, still running hot. Replaced thermostat, still running hot. Could not get to a repair shop, running hot, mechanic said to bleed air from block. Where and how? Tried threaded cap where radiator flush goes. I don't think this is right.

1996 Oldsmobile Aurora coolant fan circuitNumerous electrical issues, engine harness at firewall- replaced entire harness, corrected most other issues. work Checked fuses, No 2 and no 3 cooling fan relays.With ohm meter checked control circuit wire for these 2 relays back to the pcm. Checked engine operating temperature according to pcm via obd scan port, above perceived fan cut in. Appears pcm is not signaling relays. According to wiring diagrams pcm should ground the control circuit in relay at cut-in and is not doing so. Wire back to pcm is inactive according to ohm meter. Can not locate #1 cooling fan relay(other 2 under hood at rt front) to perform same checks on it.

2000 Oldsmobile Intrigue DTC p0137 oxygen sensorCheck engine light codes P0137. Crank sensor replaced approx 20,000 mile previously.Question: Code reader gives P0137, what do I check next?I have been warned not to jump to replace 02 sensor because it could be something else. I have the normal set of tools such and a DVM.Answer:This code is for low voltage on 02 sensor #2, post catalytic converter. Several things can cause this condition.

Oldsmobile Alero misfire no powerThe vehicle was just in a front corner collision. Changed spark plugs.Question: I just had a collision in the front driver side corner of my vehicle, everything is pretty much cosmetic, but after the collision the car started idling funny, and lacks power when i push the gas and is really hard to start in the mornings.Went to Autozone and the guy said it was a mis fire code, and to change my spark plugs and it would fix it, i did, and it did nothing. Is there a sensor or something that could make the car act this way? That could have possibly been messed up in the wreck, thank you so much.

2001 Oldsmobile Aurora coolant sensor locationI have an Oldsmobile Aurora 3.5L and it has had the light on for fluid level low , and has been worked on for this issue before. The fan was blowing and it was over heating so they fixed that. It was fine until tonight. The car has that light on, the car is over heating when i drive, when i am idle it goes back down, which its normally the other way around. Then my car acted like it wouldnt start , but it did and i was driving. I got home and had my dad put coolant in it, then i tried starting my car three times and it wouldn't start. The fourth time it started but barley. WHAT CAN I DO? I NEED MY CAR?What is wrong with it?

1995 olds cutlass supreme 3.1overheating.ENGINE RECENTLY STARTED TO OVERHEAT. I ADDED ABOUTA LITRE OF WATER DIRECTLY INTO THE RADIATOR. I WAITED APPROXIMATELY 20 MINUTES, THEN I TOOK THE CAR FOR A RIDE. THE TEMP GAUGE STAYED WITHIN NORMAL LIMITS, UNTIL I STOPPED. THE TEMP GAUGE CLIMBED INTO THE RED ZONE WHEN I LET IT IDLE. COULD THIS PROBLEM BE THE WATER PUMP OR THERMOSTAT? BY THE WAY, WHERE IS THE THERMOSTAT LOCATED ON THIS ENGINE? 3.1 LITRE ANY HELP WOULD BE GREATLY APPRECIATED. THANKS

Aurora overheats after replacing radiatorReplaced radiator, thermostat, water pump, reservoir cap, and flushed system. Ever since i replaced everything above the car still overheats. When the car is running hot the coolant runs out of the reservoir tank. At times when hot cold air blows out of the vents before turning hot. If been told that it is possibly a bad gauge or bad head. Please help.

2001 Oldsmobile Aurora a/c blows warmA/C recharged, low pressure side is cold to the touch. But only blows warm air in passenger compartment. Gauge cycles up in to the alert area then returns to top of charged area.Question: What needs to be checked next? Car has been setting for about 5 months. Previous owner said it has been checked and their are no leaks. You can hear pump cycle when fuse is pulled and replaced.

2002 Olds Alero wont startI came home from work and my car was working fine when i turned it off i forgot to switch it to park and after i turned it off i then switched it to park. Then a few minutes later the car wont start and the engine wont even cranks over.I thought it was going to be the battery but all of the electrical stuff works. When i turn the key everything is off but the security light, once i let go off the key all the lights come on including the radio. You cant here a thing when you try to start it, so i wonder if theres an engine kill or something. Thanks and please write back as soon as you can.

2002 Alero has no power to windowsQuestion: Occasionally when starting the car, the lights, all dash components, A/C, radio, power windows do not work. The only thing that works is power door locks. The engine runs fine during this. I have to shut the car off and restart several times for everything to start working again. What's up?

Oldsmobile Alero brake light problem2001 Oldsmobile Alero Service Vehicle Soon.Question: Why does my left and right brake lights don't work but the middle brake light does?There doesn't appear to be any blown bulbs or fuses.service vehicle soon light on dash.

Intrique MAF Sensor CodeReplaced intake and cylinder head gaskets, and sensor. Check engine light is on car with airflow code. Has rough idle and bogs worn when hitting the gas.

P0717 Transmission Input Speed SensorI had the computer codes in my car scanned and got a trans code. What can i do to repair this problem. Shifting is kind of sluggish and has no power when accelerate.

Oldsmobile Achieva Security LightHave problems with the gauges and the theft security system on my Oldsmobile Achieva. Had a mechanic replace the dash cluster but now check engine light is on. How to clear codes.

Oldsmobile Alero TruckThe trunk on my car will not open. Is there a way to get into it by taking out the back seat or do I need a locksmith?

Timing Belt JumpedWill the 3.4L DOHC engine hit the valves and bend them if the timing belt is shredded and jumped? How can i check this?

Check Engine Light And Runs RoughReplaced Intake Manifold Gasket replaced a few weeks ago.Question: Check engine light came on and car began to run rough after I had the intake manifold replaced on it. Was told by another mechanic that vacuum hoses were broken and one needed repaired. My question is, could this be from the intake manifold gasket being installed wrong?It is possible that the job was done incorrectly. To replace the intake manifold gaskets, basically the entire top of the engine has to come off. I have also seen the incorrect gaskets installed. This causes several different problems. That job includes removal of many vacuum lines and hoses. It is very possible the mechanic broke one or more, especially it the car has a lot of miles on it. The hoses and lines would be quite brittle and break easily.

1996 Cutlass Supreme Coolant Temp Reads HotI replaced the coolant temperature sensor on my engine after it was replaced, but it still always reads hot. What is wrong with my car? I think i need to test the wiring and the computer grounds but not sure how to do that. A schematic and meter i need to chek out my car and diagnose it the right way.